obturator internus

obturator internus

a muscle that covers a large area of the inferior aspect of the lesser pelvis, where it surrounds the obturator foramen. It functions to rotate the thigh laterally and to extend and abduct the thigh when it is flexed. Compare obturator externus, piriformis.
References in periodicals archive ?
It passes through the following structures in the following order: gracilis, adductor brevis muscle, obturator externus muscle, obturator membrane, and beneath or through the obturator internus muscle and periurethral endopelvic connective tissue; it finally exits through the opened vagina.
I try to see the muscles in the same way--puborectalis and pubococcygeous as Robyn's hand enters the vagina, ileo and isciococcygeous as I feel it move deeper, obturator internus as it swivels, and piriformis at a deep, deep point--trying to connect the internal responses to the images I have been tracing from an anatomical atlas.
I perform a similar hydrodissection under the urethra as I do in a retropubic procedure, though instead of injecting 5 cc's to the underside of the pubic symphysis on each side, I instead inject toward the obturator internus muscles.
Ancak pelvik manyetik rezonans goruntulemesinde (MRG), lumbosakral kemiklerde muhtemel radyoterapiye bagli yaglanma ile uyumlu T1 ve T2 sekanslarda difuz sinyal artisi ve bilateral obturator internus kaslarinda hafif sinyal artislari gorulurken pleksus normal olarak izlendi (Resim 1).
Variations include multiple branches from the nerve to the quadratus femoris, different trajectories through the greater and/or lesser sciatic notch, branches from nerves to the obturator internus or superior gemellus, and direct innervation from the sacral branches or obturator nerve.
The attachment of an interposition graft to the ATFP or obturator internus fascia has the potential to address central and lateral defects simultaneously.
Comparison of traditional kegel exercises with obturator internus protocol for treating bladder incontinence.
The total transvaginal approach is designed to minimize tissue trauma by offering safe, simple and precise apical mesh placement in the sacrospinous ligament and obturator internus muscle through a single vaginal incision.
CT examination of the abdomen and pelvis (with oral and IV contrast) demonstrated a large, complex, multiloculated fluid collection involving the left gluteal musculature, left illiacus muscle, left obturator internus muscle, left iliopsoas muscle, and the left iliopsoas bursae (Figures 2A, C and D) In addition, bone windows demonstrated erosive changes in the left sacroiliac joint (Figure 2B).
A thrombus in his internal jugular vein (Lemierre's syndrome) and an abscess in his obturator internus were subsequently found.
1995), obturator internus (Testut, 1899), semitendinosus and semimembranosus muscles (Bergman et al, 1984; Le Double, 1884) have also been described as attaching to the sacrotuberous ligament (Figure 3 and 4).
The obturator canal is a defect in the tendinous insertion of the obturator internus muscle onto the posterior aspect of the superior pubic ramus, which is a passage way for the obturator neurovascular bundle (Fig.